<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <link rel="stylesheet" href="Tab栏切换.css">
</head>
<body>
    <div id="Main">
        <div id="List">
            <ul>
                <li>点击1</li>
                <li>点击2</li>
                <li>点击3</li>
                <li>点击4</li>
            </ul>
        </div>
        <div class="Area">
            <div class="Dv">内容1</div>
            <div class="Dv">内容2</div>
            <div class="Dv">内容3</div>
            <div class="Dv">内容4</div>
        </div>
    </div>
<script src="Tab栏切换.js"></script>
</body>
</html>